Sodium hydride → 1-(2-(2-Methoxy-4-nitrophenoxy)ethyl)pyrrolidine

Beteiligte Stoffe

Reaktionsschritte

To a solution of the 1-(2-hydroxyethyl)-pyrrolidine [Aldrich], (1.87 ml, 16 mmol) in dimethylformamide was added portionwise sodium hydride [60% dispersion in oil, (544 mg, 16 mmol). After stirring at room temperature for 10 minutes a solution of 1-chloro-2-methoxy-4-nitro-benzene [Avocado] (3 g, 16 mmol) in dimethylformamide (10 ml) was added dropwise. The reaction mixture was left stirring at room temperature for 16 hrs then concentrated. The residue was dissolved in ethyl acetate (200 ml) and washed with water (3×50 ml). The organic phase was dried with magnesium sulphate, evaporated and the residue purified by flash chromatography on silica gel using dichloromethane-aq. ammonia-methanol as eluent to afford 1-[2-(2-methoxy-4-nitro-phenoxy)-ethyl]-pyrrolidine as a brown oil.

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